Colors of powder - PhysLab

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Colors of powder

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Researchers Ifrah Mahmood
Time Frame IYPT 2018
Supplementary Materials colours of powder final ppt
Description
Students Ifrah Mahmood
Time Frame IYPT 2018
Supplementary Materials colours of powder final ppt
Description

Ifrah also spent time exploring how a coloured material is ground to a powder where it experiences amazing colour changes. The problem also encouraged her to investigate how the degree of grinding affects the apparent colour of the powder. As different chemical pigments absorb different wavelengths of light and the colours of particles don’t change from different angles when we observe. Further,  grinding the mirror like crystals will make them whiter and rougher than before and when the light hits the small mirror like crystals it is scattered into many directions. Ifrah grew crystals of chemical potassium ferricyanide, copper sulphate and sodium nitrate. She then grounded the crystals into smaller particles and then analyzed them under a microscope for investigating the relationship between the particle size, chemical type and the incident light colour.



Research Stories | Tags: iypt2018
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    • Hunerkada
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      • Videobytes
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    • The Scientific Mind Through the Eyes of a Physics Experimenter
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      • First Lahore 2012
      • Second Sukkur 2013
      • Third Lahore 2014
      • Fourth Lahore 2016
    • Labview Workshop 2016
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      • 2009-2015
      • Open house 2023
    • Khwarizmi Science Society
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        (PIEAS) 2019 (Final Phase)
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        (PIEAS) 2019 (Phase 2)
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        (PIEAS) 2018 (Phase 1)
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      • Preston University 2013
      • Ghulam Ishaque Khan Institute of
        Engineering Sciences and Technology 2011
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